Redirect Servlet to the a div container

Question

I have a sevlet which is handled by Spring and also uses Google App Engine as a cloud plattform.

I want to redirect this servlet to another page:

@Controller

public class CustomerController {

@RequestMapping(value = "/", method = RequestMethod.GET)
public String listAllFeedsOnIndexPage(ModelMap map) throws JSONException {
   return "invite";
}

@RequestMapping(method = RequestMethod.GET)
public ModelAndView add(HttpServletRequest request, ModelMap model) {

    String firstName = request.getParameter("firstName");
    String lastName = request.getParameter("lastName");
    String email = request.getParameter("email");

    System.out.println(email);
    System.out.println(firstName);
    System.out.println(lastName);

    Customer c = new Customer();
    c.setFirstName(firstName);
    c.setLastName(lastName);
    c.setEmail(email);
    c.setDate(new Date());

    PersistenceManager pm = PMF.get().getPersistenceManager();
    try {
        pm.makePersistent(c);
    } finally {
        pm.close();
    }

    return new ModelAndView("redirect:thankYou");

}

My App Engine output: Initializing App Engine server Mär 30, 2013 1:28:26 PM com.google.apphosting.utils.config.EarHelper logNotAnEar INFO: Directory 'C:\Users\user\workspace\LandingPage\war' is not an EAR directory. File C:\Users\user\workspace\LandingPage\war\appengine-application.xmlappengine-application.xml not detected. Mär 30, 2013 1:28:26 PM com.google.apphosting.utils.config.EarHelper logNotAnEar INFO: Directory 'C:\Users\user\workspace\LandingPage\war' is not an EAR directory. File C:\Users\user\workspace\LandingPage\war\appengine-application.xmlappengine-application.xml not detected. Mär 30, 2013 1:28:26 PM com.google.apphosting.utils.config.EarHelper logNotAnEar INFO: Directory 'C:\Users\user\workspace\LandingPage\war' is not an EAR directory. File C:\Users\user\workspace\LandingPage\war\appengine-application.xmlappengine-application.xml not detected. Mär 30, 2013 1:28:26 PM com.google.apphosting.utils.config.EarHelper logNotAnEar INFO: Directory 'C:\Users\user\workspace\LandingPage\war' is not an EAR directory. File C:\Users\user\workspace\LandingPage\war\appengine-application.xmlappengine-application.xml not detected. Mär 30, 2013 1:28:26 PM com.google.apphosting.utils.config.AppEngineWebXmlReader readAppEngineWebXml INFO: Successfully processed C:\Users\user\workspace\LandingPage\war\WEB-INF/appengine-web.xml Mär 30, 2013 1:28:26 PM com.google.apphosting.utils.config.AbstractConfigXmlReader readConfigXml INFO: Successfully processed C:\Users\user\workspace\LandingPage\war\WEB-INF/web.xml Mär 30, 2013 1:28:26 PM com.google.appengine.tools.development.SystemPropertiesManager setSystemProperties INFO: Overwriting system property key 'java.util.logging.config.file', value 'C:\Users\user\Desktop\eclipse-java-juno-SR1-win32-x86_64\eclipse\plugins\com.google.appengine.eclipse.sdkbundle_1.7.5\appengine-java-sdk-1.7.5\config\sdk\logging.properties' with value 'WEB-INF/logging.properties' from 'C:\Users\user\workspace\LandingPage\war\WEB-INF\appengine-web.xml' Mär 30, 2013 1:28:26 PM com.google.apphosting.utils.jetty.JettyLogger info INFO: Logging to JettyLogger(null) via com.google.apphosting.utils.jetty.JettyLogger Mär 30, 2013 12:28:27 PM com.google.apphosting.utils.jetty.JettyLogger info INFO: jetty-6.1.x Mär 30, 2013 12:28:28 PM com.google.appengine.tools.development.ApiProxyLocalImpl log INFO: javax.servlet.ServletContext log: Initializing Spring root WebApplicationContext Mär 30, 2013 12:28:28 PM org.springframework.web.context.ContextLoader initWebApplicationContext INFO: Root WebApplicationContext: initialization started Mär 30, 2013 12:28:29 PM org.springframework.web.context.support.XmlWebApplicationContext prepareRefresh INFO: Refreshing Root WebApplicationContext: startup date [Sat Mar 30 12:28:29 UTC 2013]; root of context hierarchy Mär 30, 2013 12:28:29 PM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions INFO: Loading XML bean definitions from ServletContext resource [/WEB-INF/mvc-dispatcher-servlet.xml] Mär 30, 2013 12:28:29 PM org.springframework.context.annotation.ClassPathBeanDefinitionScanner registerDefaultFilters INFO: JSR-330 'javax.inject.Named' annotation found and supported for component scanning Mär 30, 2013 12:28:30 PM org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor INFO: JSR-330 'javax.inject.Inject' annotation found and supported for autowiring Mär 30, 2013 12:28:30 PM org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@9b4ed7a: defining beans [customerController,org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.annotation.internalPersistenceAnnotationProcessor,mvcContentNegotiationManager,org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping#0,org.springframework.format.support.FormattingConversionServiceFactoryBean#0,org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter#0,org.springframework.web.servlet.handler.MappedInterceptor#0,org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver#0,org.springframework.web.servlet.mvc.annotation.ResponseStatusExceptionResolver#0,org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolver#0,org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping,org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter,org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter,org.springframework.web.servlet.view.InternalResourceViewResolver#0,org.springframework.context.annotation.ConfigurationClassPostProcessor.importAwareProcessor]; root of factory hierarchy Mär 30, 2013 12:28:31 PM org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping registerHandlerMethod INFO: Mapped "{[],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public org.springframework.web.servlet.ModelAndView com.landing.controller.CustomerController.add(javax.servlet.http.HttpServletRequest,org.springframework.ui.ModelMap) Mär 30, 2013 12:28:31 PM org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping registerHandlerMethod INFO: Mapped "{[/],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.String com.landing.controller.CustomerController.listAllFeedsOnIndexPage(org.springframework.ui.ModelMap) throws com.google.appengine.labs.repackaged.org.json.JSONException Mär 30, 2013 12:28:31 PM org.springframework.web.context.ContextLoader initWebApplicationContext INFO: Root WebApplicationContext: initialization completed in 3010 ms Mär 30, 2013 12:28:32 PM com.google.appengine.tools.development.ApiProxyLocalImpl log INFO: javax.servlet.ServletContext log: Initializing Spring FrameworkServlet 'mvc-dispatcher' Mär 30, 2013 12:28:32 PM org.springframework.web.servlet.DispatcherServlet initServletBean INFO: FrameworkServlet 'mvc-dispatcher': initialization started Mär 30, 2013 12:28:32 PM org.springframework.web.context.support.XmlWebApplicationContext prepareRefresh INFO: Refreshing WebApplicationContext for namespace 'mvc-dispatcher-servlet': startup date [Sat Mar 30 12:28:32 UTC 2013]; parent: Root WebApplicationContext Mär 30, 2013 12:28:32 PM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions INFO: Loading XML bean definitions from ServletContext resource [/WEB-INF/mvc-dispatcher-servlet.xml] Mär 30, 2013 12:28:32 PM org.springframework.context.annotation.ClassPathBeanDefinitionScanner registerDefaultFilters INFO: JSR-330 'javax.inject.Named' annotation found and supported for component scanning Mär 30, 2013 12:28:32 PM org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor INFO: JSR-330 'javax.inject.Inject' annotation found and supported for autowiring Mär 30, 2013 12:28:32 PM org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@1d3f82cd: defining beans [customerController,org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.annotation.internalPersistenceAnnotationProcessor,mvcContentNegotiationManager,org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping#0,org.springframework.format.support.FormattingConversionServiceFactoryBean#0,org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter#0,org.springframework.web.servlet.handler.MappedInterceptor#0,org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver#0,org.springframework.web.servlet.mvc.annotation.ResponseStatusExceptionResolver#0,org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolver#0,org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping,org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter,org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter,org.springframework.web.servlet.view.InternalResourceViewResolver#0,org.springframework.context.annotation.ConfigurationClassPostProcessor.importAwareProcessor]; parent: org.springframework.beans.factory.support.DefaultListableBeanFactory@9b4ed7a Mär 30, 2013 12:28:32 PM org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping registerHandlerMethod INFO: Mapped "{[],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public org.springframework.web.servlet.ModelAndView com.landing.controller.CustomerController.add(javax.servlet.http.HttpServletRequest,org.springframework.ui.ModelMap) Mär 30, 2013 12:28:32 PM org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping registerHandlerMethod INFO: Mapped "{[/],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.String com.landing.controller.CustomerController.listAllFeedsOnIndexPage(org.springframework.ui.ModelMap) throws com.google.appengine.labs.repackaged.org.json.JSONException Mär 30, 2013 12:28:32 PM org.springframework.web.servlet.DispatcherServlet initServletBean INFO: FrameworkServlet 'mvc-dispatcher': initialization completed in 520 ms Mär 30, 2013 12:28:32 PM com.google.apphosting.utils.jetty.JettyLogger info INFO: Started [email protected]:8888 Mär 30, 2013 12:28:32 PM com.google.appengine.tools.development.AbstractServer startup INFO: Server default is running at http://localhost:8888/ Mär 30, 2013 12:28:32 PM com.google.appengine.tools.development.AbstractServer startup INFO: The admin console is running at http://localhost:8888/_ah/admin Mär 30, 2013 1:28:32 PM com.google.appengine.tools.development.DevAppServerImpl start INFO: Dev App Server is now running null null null null null null Mär 30, 2013 1:28:39 PM com.google.appengine.api.datastore.dev.LocalDatastoreService init INFO: Local Datastore initialized: Type: High Replication Storage: C:\Users\user\workspace\LandingPage\war\WEB-INF\appengine-generated\local_db.bin Mär 30, 2013 1:28:39 PM com.google.appengine.api.datastore.dev.LocalDatastoreService load INFO: The backing store, C:\Users\user\workspace\LandingPage\war\WEB-INF\appengine-generated\local_db.bin, does not exist. It will be created. null null null null null null null

However, when I press enter in my form. I get one entry of the data and A LOT OF null entries. It seems to me that the redirect, does not redirect to the other page, it recursively redirects back.

Any idea how to fix that behaviour?

what is the action of your form ? does it also points to thankYou url ? — Ankur Jain

Ankur Jain Ankur Jain · Accepted Answer · 2013-03-30T19:13:55

You can try something like this. I am returning a success page on successful form post.

@RequestMapping(value="sendData" ,method = RequestMethod.POST)
public String add(HttpServletRequest request, ModelMap model) {

String firstName = request.getParameter("firstName");
String lastName = request.getParameter("lastName");
String email = request.getParameter("email");

System.out.println(email);
System.out.println(firstName);
System.out.println(lastName);

Customer c = new Customer();
c.setFirstName(firstName);
c.setLastName(lastName);
c.setEmail(email);
c.setDate(new Date());

PersistenceManager pm = PMF.get().getPersistenceManager();
try {
    pm.makePersistent(c);
} finally {
    pm.close();
}

return "successpage";
}

Redirect Servlet to the a div container

1 Answers